Experimental Evidence for a Cluster Glass Transition in Concentrated Lysozyme Solutions.

Another open question is the effect of induced stress on local microrheological properties of the cluster glass, and the relation of induced stress to the existence of a macroscopic yield stress value, which could be pursued using a combination of classical rheometry and active microrheology. As a side-note, we also caution others to account for the possible concentration increase caused by evaporation during the short period before the sample is properly sealed, which can be highly significant when performing microrheology experiments on concentrated samples close to an arrest transition using microliter volumes.

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